Im not 100% sure but the best answer I can give is Prokaryotes because they came to be around the time oxygen did as well.
They are important because they contribute to clean air and water for 500 million people this is because they help sustain a healthy forest
Answer:it reached carrying capacity. the environment couldn't hold both the goat and tortises
Explanation:
Enzymes are regulated by more than the binding of small molecules. A second method that is used all the time by eucaryotic cells to regulate a protein's function is the covalent addition of a phosphate group to one of its amino acid side chains. These phosphorylation events can affect the protein in two important ways.
